Friction-clutch.



A. P. STElNER.

FRICTION CLUTCH.

APPLICATION man oct. 11. 1910.

Patented June 6, 1916 UNITED sfra'frns 'PATENT ernten.

ATi/IOS P. STENER, 0F XVAYNESBORO. PENNSYLVANIA. ASSIGNGR TG LANDES 'EGOL- GOMPANY, OE WAYNESBORO, EENNSYLVANI, A CORPORATION OF PENNSYI VANIA.

ERECTION-CLUTCH.

Specification of lLetters Patent.

Patented June tl. 1Q@ tu.

lle it known that l` Amios-l). S'risiNnn. a Citizen ol' the lluited States. residing at ll'vaynesboro. in the rounty of Franklin and State ot' Pennsvlvania. have invented eertain new and useful Improvements in Frieti'on-Clutehes. of which the following is a speeieation.

My said invention eonsists in eertain improvements in the details of eon'lstruetion and arrangement ot parts of trietion eluteh meehanism. wherehy sur-h a eluteh is provided which is eompaet in e mstruetion. powerful in its operation. and easily operated, and also one'wherehy the speed may be Changed quielily and easily and without undue, strain upon the driving gear. all as will he hereinafter more fully deserihed and claimed. i

Referring to the aeeompanying drawings which are made a part hereof, and on which similar reterenee charaizters indi ate similar parts, Figure 1 is a central longitudinal seetion through a Counter-shaft provided with a friction eluteh meehanism of'my improved Construction. and Fig. 2 a eross section on the dotted line in Fig. 1.

In said drawings the portions marked represent an overhead hanger or other appropriate) support. B. B hangers thereon. C a counter-shaft journaled in appropriate hearings (not shown) and extending through said hangers, and D, D driving pulleys on said Counter-shaft.

The features ot eonstruetion other than that relating to the oluteh meehanism are` or may he. of any desired or approved t'orm. adapted for any use. Jfor whieh the eluteh may he particularly designed. l

The eountensliaft C is grooved longitudinally and has av sliding eintoh-m'ierating key l() mounted therein. le `rooved bushing 'il with a ring 40 in the groove. mormted on said shaft and Connected with said key hy a screw 12. Said ring is eonneeted hy pivots 7) with a yoke 4l formed in the lower end ot' hanger B. wi'iieh is hung to swing on pivot o. An operating lever 15% is mounted on the lower end of hanger l5. by whieh it is operated to slide key 10 haek and forth.

Belt pulleys D and D are each formed with hubs having linings. Z and are loosely mounted on sha-ft C around centers i4. which are rigidly secured by set screws 15 held in plaee hy lock serews 1G. Said centers 1l eaeh carry an expaniling 'friction ring 17 tormed in pieee therewith on one side, ofthe axis and with its sides nearly approahing eaeh other on the opposite side of the axis, where the adjacent edges are formed tapered. as shown most Clearly in Fig. llaeh pulley tits over one of said friction rings. the exterior fare ot the ring heing adapted to engage an interior taie of the pulley `formed and prepared for the purpose. A eluteh expanding wedge 1S is `mounted to slide axially in a perforation in each renter. its outer end heing wedgeshaped and inserted hetween the adjacent tapered edges'y ot' the two sides ot' said ring. Said wedge is 'formed with a serew-threaded perforation in which ismounted a ser/w lil projeeting slightly heyond its inner end and loeked in the desired adjustment hya locking serew 20. A sliding operating' plunger 2l is mounted beneath said wedge with one end adapted to hear against the inner end of said screw 19 and the other end adapted to rest upon the edge of sliding ltey lll. Said sliding hey l() formed witl*L la Cam fare 2'2 under the pulley D and with a ram faee "Jil under the pulley D. said Cam. faee being inelined in opposite direetions so that. hy sliding said hey l0 longitudinally the plunger 2l in one pulley will he toreed outwardly. while the plunger in the other pulley will he released and allowed to slide inwardly `to release the wedge and eluteh.

Near the outer end of key l0 is tor-ined a short douille-fared earn 2t adapted to engage, with a plunger 25 which operates a. ,wedge 2G in the same manner that plunger 2l operates wedge 19. and expands a clutch ring to lock the shaft (l to a stationary yoke 2T in'hanger B and thus stop its motionin either direction.

The. pulleys D. i7 are formed with. pertorations 2S through whieli a screwdriver may oe inserted for renaming the lock-screw 2O and adjusting the wedge holding screw l5) beneath. The otlierloelsing screws shown are, operated-in a similar manner, as will he readily understood. The driving shaft. with pulleys ot' varying sizes belted to pulleys D and D. is not. shown. as it may he any appropriate driving shaft and of common arrangement. The driving belts may be arlll@ rang-ed to drive in reverse directions, if desired, as will be readily understood, and the gear thus converted into a reversing gear.

In operation, the parts being in the position shown in Eig. l, both pulleys D and D are free and the shaft C is locked to the voke 27. lf it'is desired to lock pulley D to shaft C, and thus drive seid shaft through the belt on said pulley, key 10 is forced to the right by means of the lever 13. Cam 24: passes from beneath plunger 25 and releases shaft C from its locked position, While plunger 2l, within pulley D and the wedge 1S carried thereby, is forced outwardly between the adjacent edges of the clutch ring 17, expanding said clutch ring against the interior surface of said pulley, thus locking it securely to the clutch ring and, through the clutch ring, to said shaft U, which is thus driven thereby. When it is desired to change the speed of the shaft, key 10 is slid to the left, Which first releases the clutch within pulley l), sets the clutch within the yoke 2T, stops the shaft, then releases said clutch Within yoke 27, Sets the clutch Within pulley ly, locks said pulley. to shaft C and drives said shaft through the belt on said pulley, which being; of different size will secure the desired change in speed.

While 'I have shown the clutch as thus adapted for use in change speed mechanism, it will be understood, of course, that the construction of clutch is adapted for use in any connection desired, either singly, or in any arrangement that may be found suitable, as in reversing gear, above mentioned. Having thus fully described my seid 1nn vention, what I claim as new and desire tosecure by Letters Patent, is:

A friction clutch comprising a shaft formedwith a longitudinal groove, o key or bar slidably mounted in said groove and formed with a series of cam faces on one edge,.a grooved bushing mounted on said shaft; a ring in said bushing, said ring being connected by pivots with e yoke mounted on a suitable support, a lever connected therewith for operating the same to slide said key back and forth, a series of belt pulleys mounted on said shaft and each formed t vania, this 28th day of September, A. D. nineteen hundred and ten.

AMOS I. STEINER. [ne] Witnesses:

E. R. SPENKLE, Cues. B. CLAYTON. 

